Narrated Jarir:

The Prophet did not screen himself from me (had never prevented me from entering upon him) since I embraced Islam, and whenever he saw me, he would receive me with a smile. Once I told him that I could not sit firm on horses. He stroked me on the chest with his hand, and said, "O Allah! Make him firm and make him a guiding and a rightly guided man.

حَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا ابْنُ إِدْرِيسَ، عَنْ إِسْمَاعِيلَ، عَنْ قَيْسٍ، عَنْ جَرِيرٍ، قَالَ مَا حَجَبَنِي النَّبِيُّ ﷺ مُنْذُ أَسْلَمْتُ، وَلاَ رَآنِي إِلاَّ تَبَسَّمَ فِي وَجْهِي.وَلَقَدْ شَكَوْتُ إِلَيْهِ أَنِّي لاَ أَثْبُتُ عَلَى الْخَيْلِ، فَضَرَبَ بِيَدِهِ فِي صَدْرِي وَقَالَ " اللَّهُمَّ ثَبِّتْهُ وَاجْعَلْهُ هَادِيًا مَهْدِيًّا ".