Hazrat Abdur Rahmaan bin Auf (Radi Allahu Anhu) reports: On one occasion, Rasulullah (SallAllahu alaihi wa Sallam) left his home and I followed him, until he entered a date orchard and fell into prostration. Nabi (SallAllahu alaihi wa Sallam) made such a lengthy sajdah that I feared that Allah Ta’ala had taken away his life. I thus went forward to see if anything had happened to Nabi (SallAllahu alaihi wa Sallam). Nabi (SallAllahu alaihi wa Sallam) then raised his blessed head from sajdah and asked me what the matter was, to which I expressed to him my fear and worry (of him passing away in sajdah). Nabi (SallAllahu alaihi wa Sallam) replied, “(The reason for me making such a lengthy sajdah was that) Jibraeel (alaihis salaam) came to me and said, ‘Shall I not give you the glad tidings that Allah Ta’ala says, ‘The one who recites durood upon you, I send My mercy upon him, and the one who recites Salaam upon you, I send peace and blessings upon him.”’
Hazrat Abu Talhah (Radi Allahu Anhu) relates: One morning, Nabi (SallAllahu alaihi wa Sallam) came to us in a state of happiness, to such an extent that the joy and happiness beamed from his blessed countenance. The Sahabaah (Radi Allahu Anhum) enquired, “O Rasulullah (SallAllahu alaihi wa Sallam) we notice that you are very pleased today. The happiness can clearly be seen on your blessed face.” Rasulullah (SallAllahu alaihi wa Sallam) replied, “Yes indeed, a messenger came to me from my Lord with the following message, ‘Whosoever from amongst your Ummah recites Durood upon you once, Allah Ta’ala will record for him ten righteous deeds, erase and pardon ten sins, raise him rank in Jannah by ten stages and reply to his Durood in a similar manner (i.e. Allah Ta’ala will send ten mercies and blessings upon him).”’
– The Gift of Durood and Salaam(Jointly published by: WIFAQUL ‘ULAMA (SA) & Madrasah Ta’leemuddeen)