Hadith: Show reverence to Muhammad (may Allah's peace and blessings be upon him) by honoring his family members.

عن أبي بكر الصديق رضي الله عنه قال: ارْقَبُوا محمَّدًا -صلَّى اللهُ عليهِ وسلَّم- فِي أَهلِ بَيتِهِ.
[صحيح موقوفًا على أبي بكر الصديق -رضي الله عنه] - [رواه البخاري من قول أبي بكر -رضي الله عنه]

Abu Bakr (may Allah be pleased with him) said: "Show reverence to Muhammad (may Allah's peace and blessings be upon him) by honoring his family members."
Sahih/Authentic. - [Al-Bukhari]

Explanation

The report of Abu Bakr (may Allah be pleased with him) contains proof of the Companions' recognition of the rights of the Messenger's household and proof of the respect and reverence for them. There are two types of rights that are due to anyone from the prophetic household who was steadfast in the religion and followed the Prophet's Sunnah: their right for being Muslims, besides their right for being relatives of the Messenger of Allah (may Allah's peace and blessings be upon him). The report of Abu Bakr indicates that he and the Companions loved the household of the Prophet (may Allah's peace and blessings be upon him) and advised the later generations to revere them.