SHAFAQNA – It is narrated from the Prophet of Islam (PBUH) who said: There are three deeds which no one is allowed to abandon, and they are: Kindness to father and mother, whether they are Muslims or disbelievers; fulfillment of promises/obligations/pledges to Muslims or disbelievers; and returning things given to you in trust to their owners, whether they are Muslims or disbelievers [1].
[1] Warram Collection, Vol. 2, page 121.