Isma’eel bin Musa Al-Fuzaari, from Mohammad bin Faz’eel, from Yazid bin Abi Ziyad, from Mujahid, from Ibn Abbas, who said:
On the Day of Judgement, ALLAH (SWT) will place Jibraeel and the MESSENGER OF ALLAH (SAWW) on Siraat, and they will not allow anyone to cross it without a pass from ALI BIN ABI TALEB (ASWS)
(Ref: Bihar AI-Anwar 39:208. Irshaad Al-Quloob 2:257.)