Reference : Hisn al-Muslim 180

الْحَمْـدُ للهِ الَّذي أَطْعَمَنـي هـذا
وَرَزَقَنـيهِ مِنْ غَـيْرِ حَوْلٍ مِنِّي وَلا قُوَّة
Alhamdu lillāhi ‘l-ladhī aṭ`amanī hādhā, 
wa razaqanīhi min ghayri ḥawlin minnī wa lā quwwah.


Praise is to Allah Who has given me this food, 
and sustained me with it though I was unable to do it and powerless.

Reference:
At-Tirmidhi, Abu Dawud, and Ibn Majah. See also Al-Albani, Sahih 
At-Tirmidhi 3/159.

Chapter: Upon completing the meal