Virtues of Durood

Muslim narrated in his Sahih from Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (may Allah bless him and give him peace) said ‘he who invokes blessings on me once, Allah sends ten blessings upon him.’
Al-Nasa’i narrated in ‘Invocations of the day and night’, from ‘Umar bin Dinar (may Allah be pleased with him) that the Prophet (may Allah bless him and give him peace) said ‘he of my community who invokes blessings upon me sincerely, Allah will bless him ten fold and raise him ten degrees, and he will have written for him ten good deeds, and erased from his record ten bad deeds.’