[Machine] About Ibn Ka'b, he mentioned something similar to it.  

عَنِ ابْنِ كَعْبٍ فَذَكَرَ نَحْوَهُ  

[Machine] Narrated by the Prophet ﷺ, a man freed a share of his slave, but the Prophet ﷺ did not approve of it. Ghundar, son of Thalib, said: "He (the Prophet) used the word Shu'bah (meaning stuttering) in relation to his tongue. And perhaps Ghundar did not understand the remaining part of the hadith of Ibn Wadi'ah Al-Ansari."  

عَنِ النَّبِيِّ ﷺ أَنَّ رَجُلًا أَعْتَقَ نَصِيبًا لَهُ مِنْ مَمْلُوكٍ فَلَمْ يُضَمِّنْهُ النَّبِيُّ ﷺ كَذَا قَالَ غُنْدَرٌ ابْنِ الثَّلِبِّ وَإِنَّمَا هُوَ ابْن التَّلِبِّ وَكَانَ شُعْبَةُ فِي لِسَانِهِ شَيْءٌ يَعْنِي لُثْغَةً وَلَعَلَّ غُنْدَرًا لَمْ يَفْهَمْ عَنْهُبَقِيَّةُ حَدِيثِ ابْنِ وَدِيعَةَ الْأَنْصَارِيِّ