بِسْمِ اللَّهِ وَاللَّهُ أَكْبَرُ [اَللَّهُمَّ مِنْكَ وَلَكَ] اَللَّهُمَّ تَقَبَّلْ مِنِّي

Bismillaahi wAllahu 'Akbar [Allaahumma minka wa laka] Allaahumma taqabbal minnee

With the Name of Allah, Allah is the Most Great! [O Allah, from You and to You.] O Allah, accept it from me.

Reference: Ahmad 4/400, No. 19586; Abu Dawood, 4/308, No. 5040