Show compassion towards those who have lost their loved ones; Respect your fellow Muslims; Have love for your fellow Muslims; Follow God's will without questioning it; Be mindful when expressing grief over someone's loss .

This hadith narrates an incident in which the Prophet Muhammad (PBUH) was deeply saddened by the death of three of his companions - Zaid b. Harithah, Ja'far and 'Abd Allah b. Rawahah. He sat down in a mosque and grief was visible on his face. This hadith teaches us that we should be compassionate towards those who have lost their loved ones and should not be indifferent to their pain and suffering. It also shows us how much love and respect the Prophet Muhammad had for his companions as he felt immense sorrow upon hearing about their deaths even though he knew that they were all destined to die one day according to God's will.