ا للهُ أَكْـبَر، ا للهُ أَكْـبَر، ا للهُ أَكْـبَر.(3). لا إلهَ إلاّ اللّهُ وَحْـدَهُ لا شريكَ لهُ، لهُ الملكُ ولهُ الحَمْد، وهُوَ على كُلّ شَيءٍ قَـدير، آيِبـونَ تائِبـونَ عابِـدونَ لِرَبِّـنا حـامِـدون، صَدَقَ اللهُ وَعْـدَه، وَنَصَـرَ عَبْـدَه، وَهَزَمَ الأَحْـزابَ وَحْـدَه
laa ilaaha illallaahu wahdahu laa shareeka lahu, lahul-mulku, wa lahul-hamdu, wa Huwa alaa kutti shay in Qadeer, aa iboona, taa iboona, aabidoona, lirabbinaa haamidoona, sadaqallaahu wa dahu, wa nasara abdahu, wa hazamal- ahzaaba wahdahu.
None has the right to be worshipped but Allah alone, Who has no partner. His is the dominion and He is the praise, and He is Able to do all things. We return repentant to our Lord, worshipping our Lord, and praising our Lord. He fulfilled His Promise, He aided His slave, and He alone defeated the Confederates.
Reference: Bukhari 7/163, Muslim 2/980. The Prophet (SAW) used to say this when returning from a campaign or from Hajj.