It is narrated from Sayyiduna Abdullah bin Abi Awfa (may Allah be pleased with him) that when Sayyiduna Bilal (may Allah be pleased with him) said 'qad qamat al-salah' (the prayer has begun), the Messenger of Allah (peace and blessings be upon him) would rise and say the takbir.
Only al-Hajjaj bin Farrukh narrates this, and Yahya bin Ma'in used to declare him da'if (weak).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2297
Hadith Gradingمحدثین:منكر
Hadith Takhrij«منكر۔ اخرجه ابن عدي في الكامل 2/233»