What is the correct way to send blessings and salat on Prophet Muhammad (peace be upon him) according to the Hadith of Abu Sa'id Al-Khudri (may Allah be pleased with him)?
 Narrated Abu Sa`id Al-Khudri:                     We said, "O Allah's Apostle This is (i.e. we know) the greeting to you; will you tell us how to send Salat on you?" He said, "Say: 'Allahumma Salli 'ala Muhammadin `Abdika wa rasulika kama sal-laita 'ala Ibrahima wa barik 'ala Muhammadin wa all Muhammadin kama barakta 'ala Ibrahima wa `Ali Ibrahim."