عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ إِذَا لَقِيتَ الْحَاجَّ فَسَلِّمْ عَلَيْهِ وَصَافِحْهُ وَمُرْهُ أَنْ يَسْتَغْفِرَ لَكَ قَبْلَ أَنْ يَدْخُلَ بَيْتَهُ فَإِنَّهُ مَغْفُورٌ لَهُ
It is narrated from Sayyiduna Abdullah bin Umar, may Allah be pleased with them both, that the Messenger of Allah, peace and blessings be upon him, said: When you meet a pilgrim, greet him with peace and shake hands with him, and ask him to pray for your forgiveness before he enters his house, because at that time he is forgiven.