that the Messenger of Allah ﷺ said: "No two Muslims meet each other and shake hands, except that Allah forgives them before they part."  

قَالَ رَسُولُ اللَّهِ ﷺ مَا مِنْ مُسْلِمَيْنِ يَلْتَقِيَانِ فَيَتَصَافَحَانِ إِلاَّ غُفِرَ لَهُمَا قَبْلَ أَنْ يَفْتَرِقَا  

that a man said: "O Messenger of Allah! When a man among us meets his brother or his friend should he bow to him?" He said: "No." The man continued: "Should he embrace him and kiss him?" He said: "No." He said: "Should he take his hand and shake it?" He said: "Yes."  

رَجُلٌ يَا رَسُولَ اللَّهِ الرَّجُلُ مِنَّا يَلْقَى أَخَاهُ أَوْ صَدِيقَهُ أَيَنْحَنِي لَهُ قَالَ لاَ قَالَ أَفَيَلْتَزِمُهُ وَيُقَبِّلُهُ قَالَ لاَ قَالَ أَفَيَأْخُذُ بِيَدِهِ وَيُصَافِحُهُ قَالَ نَعَمْ  

that he asked Anas bin Malik: "Did the Companions of the Messenger of Allah ﷺ use to shake each other's hand?" He said, "Yes."  

قُلْتُ لأَنَسِ بْنِ مَالِكٍ هَلْ كَانَتِ الْمُصَافَحَةُ فِي أَصْحَابِ رَسُولِ اللَّهِ ﷺ قَالَ نَعَمْ  

that the Prophet ﷺ said: "taking hold of the hand is from the completeness of the greeting."  

عَنِ النَّبِيِّ ﷺ قَالَ مِنْ تَمَامِ التَّحِيَّةِ الأَخْذُ بِالْيَدِ وَفِي الْبَابِ عَنِ الْبَرَاءِ وَابْنِ عُمَرَ  

that the Messenger of Allah ﷺ said: "From the complete of visiting the ill is that one of you place his hand on his forehead" - or he said - "on his hand, and ask him how he is. And shaking hands completes your greetings among each other."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَمَامُ عِيَادَةِ الْمَرِيضِ أَنْ يَضَعَ أَحَدُكُمْ يَدَهُ عَلَى جَبْهَتِهِ أَوْ قَالَ عَلَى يَدِهِ فَيَسْأَلَهُ كَيْفَ هُوَ وَتَمَامُ تَحِيَّاتِكُمْ بَيْنَكُمُ الْمُصَافَحَةُ