The basic principle is that the Muslim should be regarded in the best possible light in all he says and does, and that one should not think negatively of him or suspect him, because suspicion is the highest kind of deception. This holds true unless he really does something to contradict it. The Muslim is his fellow Muslim’s brother; he should love for him what he loves for himself in terms of good and detest for him what he hates for himself in terms of bad. If a Muslim offers you food or drink, the general rule is to think favourably of him unless you see something obviously to the contrary..