Ubadah bin Walid said that he came out with his father Ubadah bin al-Samit and he was a young man at that time. They met an elderly Shaikh who had a mantle over him and Maafi garments. His slave too had a mantle and Maafai. The narrator (Ubadah bin Walid) said," My uncle! In this way, you would have had a pair of good quality garments and he would have had one striped mantle". The man turned to Ubadah bin al-Samit and asked," Is he your son?" He said," yes" Ubadah bin Walid said that the Shaikh stroked his head and said," May Allah bless you! I bear testimony that I heard the Messenger of Allah (ﷺ) say that we must feed the slaves the same thing that we eat and clothe them that which we wear. O son of my brother! It is more dear to me that I lose the possessions of this world than I lose anything of the hereafter". Ubadah bin Walid asked his father who the Shaikh was and he said." He is Abu al-Yasr Kab bin Amr"  

أَنْ تُعْطِيَ غُلاَمَكَ هَذِهِ النَّمِرَةَ وَتَأْخُذَ الْبُرْدَةَ فَتَكُونُ عَلَيْكَ بُرْدَتَانِ وَعَلَيْهِ نَمِرَةٌ؟ فَأَقْبَلَ عَلَى أَبِي فَقَالَ ابْنُكَ هَذَا؟ قَالَ نَعَمْ قَالَ فَمَسَحَ عَلَى رَأْسِي وَقَالَ بَارَكَ اللَّهُ فِيكَ أَشْهَدُ لَسَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ أَطْعِمُوهُمْ مِمَّا تَأْكُلُونَ وَاكْسُوهُمْ مِمَّا تَكْتَسُونَ يَا ابْنَ أَخِي ذَهَابُ مَتَاعِ الدُّنْيَا أَحَبُّ إِلَيَّ مِنْ أَنْ يَأْخُذَ مِنْ مَتَاعِ الْآخِرَةِ قُلْتُ أَيْ أَبَتَاهُ مَنْ هَذَا الرَّجُلُ؟ قَالَ أَبُو الْيَسَر كَعْبِ بْنُ عَمْرٍو