Assalamualaikum brother. My problem is when I eat dinner or a meal with my family or in gatherings I eat my plate fully and cleanly as the sunnah of the prophet Muhammad sallallahu alaihi wasallam if I am correct! I try my best never to let any food or a rice to be wasted. My problem is sometimes or usually my brother and sister they don’t eat their food or plate fully and cleanly. So there some rice or food remains and I go and eat theirs but I don’t want to . I do that because in my head it comes like if I don’t eat there’s leftover I will be sinful. I also think it’s shaitan who is playing with my mind but I don’t know. Please help me. Sometimes I also eat leftover foods from the dustbin and from the sink. Moreover

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

You should eat as per your need, taking into account not to go beyond it. If any food remains, you can eat it sometime later.

As for emptying the dish of food, it is a good matter, taking into account that you are not obliged to do so like the dishes of others. In addition, you are not required to eat the food in the kitchen sink or in the recycle bin. However, you should advise those who leave behind some mouthfuls in their dishes to eat them and not to leave them for Satan, especially if eating them would cause them no harm. Besides, if there is a chance to collect all of these mouthfuls to eat them at sometimes later, then this is good.

Allah knows best.