“Allah is the Greatest, Allah is the Greatest; I testify that there is no deity but Allah, I testify that Muhammad is the Messenger of Allah; come to prayer, come to success; the prayer has commenced, the prayer has commenced; Allah is the Greatest, Allah is the Greatest; there is no deity but Allah.”
When morning came I went to the Messenger of Allah, peace and blessings be upon him, and informed him of what I had seen. He said, “It is truly a vision from Allah, if He wills. Go with Bilal, teach him what you have been shown, and let him pronounce the call, for his voice carries farther than yours.”
So I went with Bilal, repeating the words to him while he made the call. ʿUmar ibn al-Khattab heard it while he was in his house; he came out dragging his cloak and said, “By the One Who sent you with the truth, I have seen exactly what he was shown!” The Messenger of Allah, peace and blessings be upon him, said, “Praise be to Allah.”
It was recorded by Abū Dāwūd (81), al-Dārimī (268–269), Ibn Mājah (239–240), al-Tirmidhī in abridged form (359), and Aḥmad (4/43)—the present wording is his; also by al-Dāraqutnī (89), Ibn Khuzaymah, and Ibn Ḥibbān as cited in Fatḥ ⦗2/61–62⦘, through the route of Muḥammad ibn Isḥāq who said: “Muḥammad ibn Ibrāhīm ibn al-Ḥārith al-Taymī related to me, from Muḥammad ibn ʿAbd Allāh ibn Zayd ibn ʿAbd Rabbih, who said: ʿAbd Allāh ibn Zayd narrated it to me.”
This chain is good. Al-Tirmidhī remarked, “Ḥasan, ṣaḥīḥ.” Al-Nawawī said in al-Majmūʿ ⦗3/76⦘: “Its isnād is ṣaḥīḥ,” and in al-Talkhīṣ ⦗3/161⦘: “Al-Bukhārī also declared it sound, as al-Tirmidhī reported from him in al-ʿIlal.” He added, “Muḥammad…"