Reference : Hisn al-Muslim 67

لا إلهَ إلاّ اللّهُ
وحدَهُ لا شريكَ لهُ 
لهُ المُـلْكُ ولهُ الحَمْد 
وهوَ على كلّ شَيءٍ قَدير 
اللّهُـمَّ لا مانِعَ لِما أَعْطَـيْت 
وَلا مُعْطِـيَ لِما مَنَـعْت 
وَلا يَنْفَـعُ ذا الجَـدِّ مِنْـكَ الجَـد
Lā 'ilāha 'illallāh, 
waḥdahu lā sharīka lah, 
lahu ‘l-mulku wa lahu ‘l-ḥamd,
wa huwa `alā kulli shay'in qadīr, 
Allāhumma lā māni`a limā 'a`tayt, 
wa lā mu`tiya limā mana`t, 
wa lā yanfa`u dhal-jaddi minkal-jadd.


None has the right to be worshipped but Allah alone, 
He has no partner, 
His is the dominion and His is the praise,
and He is Able to do all things. 
O Allah, there is none who can withhold what You give, 
and none may give what You have withheld,
and the might of the mighty person cannot benefit him against You.

Reference:
Al-Bukhari 1/255, Muslim 1/414.

Chapter: After salam