Pray regularly even while travelling or on a journey; Be mindful of others' needs; Help fellow muslims fulfill religious obligations by reminding them or leading them in prayer if necessary.

This hadith is about Umar ibn al-Khattab's practice of leading people in prayer when he visited Makka. He would do two rakahs and then encourage the people of Makka to complete their prayers as they were a group travelling. This hadith teaches us that it is important for us to pray regularly even if we are travelling or on a journey, as it is an obligation upon us as Muslims. It also encourages us to be mindful of our fellow Muslims and help them fulfill their religious obligations by reminding them or leading them in prayer if necessary.