"The sign of the believers upon the Sirat is: O lord, protect (us), protect (us).'" [Abü 'Eisa said:] This Hadith is Gharib [as a narration of AlMughirah bin Shu'bah] we do not know of it except through the narration of 'Abdur-Rahmãn bin Ishaq [and there is something on this topic from Abu Hurairah].  

قَالَ رَسُولُ اللَّهِ ﷺ شِعَارُ الْمُؤْمِنِ عَلَى الصِّرَاطِ رَبِّ سَلِّمْ سَلِّمْ  

"I asked the Prophet ﷺ to intercede for me on the Day of Judgement. He said: 'I am the one to do so.'" [He said:] "I said: 'O Messenger of Allah! Then where shall I seek you?' He said: 'Seek me, the first time you should seek me is on the Sirat.'" [He said:] "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.'"  

سَأَلْتُ النَّبِيَّ ﷺ أَنْ يَشْفَعَ لِي يَوْمَ الْقِيَامَةِ فَقَالَ أَنَا فَاعِلٌ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ فَأَيْنَ أَطْلُبُكَ قَالَ اطْلُبْنِي أَوَّلَ مَا تَطْلُبُنِي عَلَى الصِّرَاطِ قَالَ قُلْتُ فَإِنْ لَمْ أَلْقَكَ عَلَى الصِّرَاطِ قَالَ فَاطْلُبْنِي عِنْدَ الْمِيزَانِ قُلْتُ فَإِنْ لَمْ أَلْقَكَ عِنْدَ الْمِيزَانِ قَالَ فَاطْلُبْنِي عِنْدَ الْحَوْضِ فَإِنِّي لاَ أُخْطِئُ هَذِهِ الثَّلاَثَ الْمَوَاطِنَ