بِسْمِ اللهِ واللهُ أَكْبَرُ [اللَّهُمَّ مِنْكَ ولَكَ] اللَّهُمَّ تَقَبَّلْ مِنِّي

In the name of Allāh, and Allāh is the greatest. O Allāh, (it is) from You and belongs to You, O Allāh, accept this from me.

Reference: In the name of Allāh, and Allāh is the greatest. O Allāh, (it is) from You and belongs to You, O Allāh, accept this from me. Muslim (#1966, 3/1557) and al-Bayhaqī (9/287). What is between the brackets is from al-Bayhaqī and others.