Perform wudoo before sleeping when in a state of ritual impurity/junub .

This hadith discusses the permissibility of sleeping while in a state of ritual impurity or junub. The Prophet Muhammad was asked by Umar if it was permissible to sleep while junub and the Prophet replied that it is permissible as long as one performs ablution or wudoo as for prayer. This hadith teaches us that although we must perform ablutions before performing any acts of worship such as prayer or reciting the Quran, we are still allowed to rest even when we are in a state of ritual impurity. It also teaches us that cleanliness is important and should be maintained at all times. We should strive to keep ourselves clean and perform our religious duties with utmost care and attention.