At the time of meeting someone, I have heard some people say, ‘May Allah forgive us and you'[يغفر الله لنا و لكم]. Is this proved in a Hadith?
This is probably due to the following Hadith recorded in Sunan Abi Dawud and other Hadith sources:
Sayyiduna Al Bara ibn ‘Azib (radiyallahu ‘anhu) reports that Nabi (sallallahu ‘alayhi wa sallam) said, “When two Muslims meet, shake hands, praise Allah and ask Him for forgiveness they will be forgiven”
(Sunan Abi Dawud, Hadith: 5169. Refer: Mukhtasar Sunan Abi Dawud of ‘Allamah Mundhiri, Hadith: 5048)
Also see here
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar