As per Quran;|
Undoubtedly, Allah and His angels send blessings on the Prophet, the
Communicator of unseen news, O you who believe! send upon him Blessings and
salute him fully well in abundance
Malik narrates that Muhammad (PBUH) said:
He who reads a single Durood upon me, Almighty Allah blesses him ten times, ten
of his sins are forgiven, and he is increased ten times in stages (internally).