Assalamu'alaikom,

The following is the Salawat Al-Kausar, one of the "stronger" salawats !!
from:
http://www.iqra.net/Salawaat/dalaail/dalaail6.htm

Salaat u'l Kawthar

Allahumma Salli 'alaa Muhammad-in fi'l Awwaleen
Wa Salli 'alaa Muhammad-in fi'l Aakhireen
Wa Salli 'alaa Muhammad-in fi'n-Nabiyyeen
Wa Salli 'alaa Muhammad-in fi'l-Mursaleen
Wa Salli 'alaa Muhammad-in fi'l mala'il a'laa ilaa yaumiddeen



O Allah! Bestow blessings on Sayyidina Muhammad among the ancients,
and bestow blessings on Sayyidina Muhammad among those of later times,
and bestow blessings on Sayyidina Muhammad among the Prophets,
and bestow blessings on Sayyidina Muhammad among the Messengers,
and bestow blessings on Sayyidina Muhammad among all the highest angels
till the Day of Judgement.


wassalaam