What is the ruling on saying: "I will not absolve you if you do such and such," and what is the meaning of this phrase?

People usually mean by their statement: "I will not absolve you if you do such and such," that they will not release you from their right, or they will not forgive you. There is no harm in this phrase if it is said rightfully, such as when someone says: "I will not absolve you if you backbite me." It is, however, recommended for a Muslim to pardon those who wrong them and to meet evil with forgiveness and absolution, as Allah Almighty says: "And those who restrain anger and pardon people - and Allah loves the doers of good" (Al Imran: 134).