Translation:

2. Allah has already ordained for you (O men) the dissolution of your oaths (in some cases): and Allah is your Protector and He is Full of Knowledge and Wisdom.

Notes (Tafseer)

5531. Cf. ii. 224. If your vows prevent you from doing good, or acting rightly, or making peace between persons, you should expiate the vow, but not refrain from your good deed.