If your brother commits a mistake or sin you should overlook...
If your brother commits a mistake or sin you should overlook his lapse and forgive him, and should not at all feel ashamed in doing so. Purify the hearts of others of enmity and grudge by purifying your own hearts of these bad qualities in the first instance. It is obligatory for every descendant of Adam, to whatever religion or creed he may belong, that he should sympathise with his fellow beings.
He should like that for others which he likes for himself and should not like that for them which he does not like for himself. He should expect from others to the same extent to which he meets the expectations of others. A real believer is he who endeavours to do good deeds. The best act is perfect justice which means that you should be absolutely impartial and should not discriminate between different persons.
He who follows the ways of Muhammad in leading his life is not different from one who follows the ways of Jesus or other accomplished personalities. The object of the creation of man is this that he should acquire virtues and excellence and should acquire good attributes. He is free to achieve this end by any means he likes.
Ali says: “It is necessary for you to follow the Prophet's actions when the world was contracted from under his feet and he was kept away from its enjoyments and embellishments. And if you so desire you may see Jesus Christ who used to recline on a stone, wore coarse dress and ate tasteless and insipid food. Hunger was his bread, the moon was his lamp, east and west were his shade, and the grass constituted his fruits and perfume.
He had no wife who could allure him and no children for whom he might be worried. He had no wealth which might attract his attention nor any avarice which might humiliate him. His feet were his means of transport and his hands were his servants”. At another place Imam Ali says: “These were the people who made the earth their carpet and its dust their bed. They contented themselves with water instead of perfume and passed away from the world as Jesus did”.
The same reality which Muhammad had in view when he said: “The Prophets are brothers of one another. Their mothers are different but their religion is one and the same”. The same reality was before Ali when he said about Muhammad: “The Prophet spent his life in the same way in which the earlier Prophets spent their lives”.