1. Believe in ALLAH
“And We shall turn to whatever deeds they (disbelievers, polytheists, sinners) did, and We shall make such deeds as scattered floating particles of dust” [al-Furqaan 25:23]
'A'isha reported: I said: Messenger of Allah, the son of Jud'an established ties of relationship, fed the poor. Would that be of any avail to him? He said: It would be of no avail to him as he did not ever say: O my Lord, pardon my sins on the Day of Resurrection. [Sahih Muslim 214]
2. One should do Dua for aiding in doing act of workship.
Allahumma a'inni ala dhikrika, wa shukrika, wa husni 'ibadatika
Mu'adh b. Jabal reported that the Messenger of Allah (ﷺ) caught his hand and said:By Allah, I love you, Mu'adh. I give some instruction to you. Never leave to recite this supplication after every (prescribed) prayer: "O Allah, help me in remembering You, in giving You thanks, and worshipping You well." (Abi Dawud: 1522)
3. Should be done with Iklas for ALLAH alone
They were commanded only to worship Allah with sincere devotion to Him, being
inclined to true faith, and to establish prayer and give zakah; that is the true
religion
[al-Bayyinah 98:5]
We feed you only for the sake of Allah; we seek from you neither reward nor gratitude. [al-Insan 76:9]
Whoever seeks the harvest of the Hereafter, We will increase for him his harvest; and whoever seeks the harvest of this world, We will give him thereof, but in the Hereafter he will have no share. [al-Shura 42:20]
4. In accordance with Quran and Sunnah
Should be in accordance with the only way which Allah has prescribed for worship, which is by following the Prophet (peace and blessings of Allah be upon him) in the laws that he has brought.Narrated Aisha:Allah's Messenger (ﷺ) said, "If somebody innovates something which is not in harmony with the principles of our religion, that thing is rejected." (Sahih al-Bukhari 2697, Sahih Muslim 1718a)
Narrated Irbad ibn Sariyah:
A man said: Messenger of Allah! It seems as if it were a farewell exhortation, so what injunction do you give us?
He(ﷺ) said: I enjoin you to fear Allah, and to hear and obey even if
it be an Abyssinian slave, for those of you who live after me will see
great disagreement. You must then follow my sunnah and that of the
rightly-guided caliphs. Hold to it and stick fast to it. Avoid
novelties, for every novelty is an innovation, and every innovation is
an error. (Abi Dawud 4607)
5. Acceptance of good deed
It was reported that 'Ali ibn Abu Taalib(may Allaah be pleased with him) said: "Be more concerned about the acceptance of your deed than you are about the performance of the deed itself; did you not hear: "Allaah only accepts from the righteous [who fear Him]." [5:27]
“And they who give what they give [of charity] while their hearts are fearful because they will be returning to their Lord.” [Al-Mu’minūn 23:60]
Narrated 'Abdur-Rahman bin [Sa'eed bin] Wahb - that is Al-Hamdani:
that 'Aishah the wife of the Prophet (ﷺ) said: "I asked about the Messenger of Allah (ﷺ) about this Ayah: And those who give that which they give with their hearts full of fear... (23:60)" 'Aishah said: "Are they those who drink Khamr and steal?" He said: "No, O daughter of As-Siddiq. They are those who fast, perform Salat, give charity while they fear that their Lord will not accept it from them: It is these who hasten to do good deeds, and they are the foremost of them (23:61)." [Tirmidhi: 3475, Sunan Ibn Majah: 4338]
After every good deed pray for acceptance
And [remember] when Abraham was raising the foundations of the House and Ishmael, [saying], “Our Lord, accept this from us, for You are the All-Hearing, the All-Knowing.
6. Consistent is the key
Narrated `Aisha (May Allah be pleased with her): Allah's Messenger (ﷺ) said, "Do good deeds properly, sincerely and moderately and know that your deeds will not make you enter Paradise, and that the most beloved deed to Allah is the most regular and constant even if it were little." (Sahih al-Bukhari 6464)
7. Preserve accepted Deed
Abu Hurairah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "Do you know who is the bankrupt?" They said: "The bankrupt among us is one who has neither money with him nor any property". He said, "The real bankrupt of my Ummah would be he who would come on the Day of Resurrection with Salat, Saum and Sadaqah (charity), (but he will find himself bankrupt on that day as he will have exhausted the good deeds) because he reviled others, brought calumny against others, unlawfully devoured the wealth of others, shed the blood of others and beat others; so his good deeds would be credited to the account of those (who suffered at his hand). If his good deeds fall short to clear the account, their sins would be entered in his account and he would be thrown in the (Hell) Fire". [ Sahih Muslim 2581 ,Jami` at-Tirmidhi 2418]
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "Whoever has wronged his brother, should ask for his pardon (before his death), as (in the Hereafter) there will be neither a Dinar nor a Dirham. (He should secure pardon in this life) before some of his good deeds are taken and paid to his brother, or, if he has done no good deeds, some of the bad deeds of his brother are taken to be loaded on him (in the Hereafter). [Sahih al-Bukhari 6534]