ALLAHUMMA SALLI ALA SAYYIDINA MUHAMMADIW WA ABLIGHUL WASILATA AD DARAJATAR RAFI'ATAL JANNAH.

"O Allah! Shower peace upon our Chief Muhammad and endow him with the means and high status in Heaven".

This is the highest Durood Shareef and if recited after every prayer and in every prayer, it brings a great deal of reward.