Follow instructions & obey God's commands .

This hadith is a warning from the Prophet Muhammad ﷺ about the importance of straightening one's rows when praying in congregation. He said that if people do not take care to line up properly, Allah will alter their faces as punishment. This means that they will be disfigured and made ugly by God's wrath. It is important for Muslims to remember this warning and take care to line up properly when praying in congregation so as not to incur divine punishment.

The Prophet ﷺ also taught us through this hadith the importance of following instructions and being obedient to God's commands, even if it seems like a small thing such as lining up properly for prayer. We must always strive to obey God in all matters, big or small, so we can avoid His wrath and gain His blessings instead.