It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever says: 'Raditu billahi rabban, wa bil-islami dinan, wa bi-Muhammadin rasulan' (I am pleased with Allah as Lord, with Islam as religion, and with Muhammad (peace and blessings be upon him) as Messenger), Paradise becomes obligatory for him." This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Abu Sallam Sabiq bin Najiyah that he said: We were sitting in the mosque of Hims when a man passed by. The people said that he had served the Prophet (peace and blessings be upon him). I went up to him and asked him: Narrate to me a hadith that you yourself heard from the Messenger of Allah (peace and blessings be upon him), with no chain of many narrators between you and him (peace and blessings be upon him). He said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Any servant who says in the morning and in the evening: 'Raditu billahi rabban, wa bil-islami dinan, wa bi-Muhammadin nabiyyan' (I am pleased with Allah as Lord, with Islam as religion, and with Muhammad (peace and blessings be upon him) as Prophet), it is a right (an obligation) upon Allah to please him on the Day of Resurrection." This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.