Isa bin Sabrah narrates from his father, from his grandfather, who said: "One day the Prophet (peace and blessings be upon him) ascended the pulpit. After praising and extolling Allah Almighty, he (peace and blessings be upon him) said: O people! There is no prayer without ablution; there is no ablution for the one who does not mention the name of Allah before it; the one who does not believe in me does not believe in Allah Almighty; and the one who does not recognise the right of the Ansar does not believe in me."
Al-Tabarani recorded it in al-Mu'jam al-Awsat. As for Isa bin Sabrah, his father, and Isa bin Yazid, I have not seen anyone mention any of them.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطهارة / 1157
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 1119»