Remembering those who have passed away through prayers in their honour; Showing respectfulness towards deceased people; Showing condolences towards families or loved ones if possible .

This hadith is about the Prophet Muhammad's announcement of the death of an Najashi and leading a prayer for him. It is narrated by Yahya from Malik from Ibn Shihab from Said ibn al-Musayyab from Abu Hurayra that when the Messenger of Allah heard about an Najashi's death he announced it to everyone on that day and went out with them to lead a prayer in his honour. He formed them into rows and said "Allah is greater" four times as part of his prayer. This hadith teaches us that we should remember those who have passed away by praying for them in their honour. We should also be respectful towards those who have died by showing our condolences to their families or loved ones if possible.