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