"The sign of the believers upon the Sirat is: O lord, protect (us), protect (us).'" This Hadith is Gharib we do not know of it except through the narration of 'Abdur-Rahmãn bin Ishaq .
Jami` at-Tirmidhi Book 37, Hadith 18
← Previous Hadith "The Messenger of Allah (s.a.w) said: 'How can I be comfortable when the one with the horn is holding it to his lip, his ears listening for when he will be ordered to blow, so he can blow.' It was as if that was very hard upon the Companions of the Prophet (s.a.w), so he said to them: 'Say: "Allah is sufficent for us and what a good protector He is, and upon Allah we rely." This Hadith is Hasan. This Hadith has been reported through other routes from 'Atiyyah, from Abu Sa'eed from the Prophet SAW, similarly.

Jami` at-Tirmidhi Book 37, Hadith 17 Next Hadith → "I asked the Prophet (s.a.w) to intercede for me on the Day of Judgement. He said: 'I am the one to do so.'" "I said: 'If I do not meet you upon the Sirat?' He said: 'Then seek me at the Mizan.' I said:'And if I do not meet you at the Mizan?' He said: 'Then seek me at the Hawd, for indeed I will not me missed at these three locations.'"

Jami` at-Tirmidhi Book 37, Hadith 19