{And whoever does not find, then a fast of two consecutive months before they touch one another. And whoever is unable, then feeding sixty poor persons. That is for you to believe in Allah and His Messenger; and those are the limits of Allah}" - meaning the rulings of Allah which He has set regarding zihar, consisting of emancipation, fasting, and feeding.
Muhammad said: His statement: {That is for you to believe} - the meaning is: that which we have described, so that you may believe.
Tafsir of Surat al-Mujadila from verse 5 to verse 6.