Whenever anyone took the Messenger of Allah ﷺ by the hand, he would never withdraw his hand until the other man let go. His knee was never seen extending beyond the knee of the one sitting beside him. Whenever anyone shook his hand, he would turn his face fully toward him and would not turn away until the man had finished speaking.
أن رسول الله ﷺ لم يكن أحد يأخذ بيده فينزع يده من يده حتى يكون الرجل هو الذي يرسله ولم يكن ترى ركبتاه، أو ركيته خارجة عن ركبة جليس ولم يكن أحد يصافحه إلا أقبل عليه بوجهه، ثم لم يصرفه عنه حتى يفرغ من كلامه.
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Bazzar narrated it in his Musnad (8548), and Tabarani in Awsat (8688), both through the route of Abdullah bin Salih, who said, Layth (that is, Ibn Saad) narrated to us, from Saeed Maqburi, from Abu Hurairah, who related it.Haythami said in Majma (15/9), "The isnad of Tabarani is hasan."I say, it is as he said, for Abdullah bin Salih's hadith is hasan.