Ali, Talhah, al-Zubayr and Sa'd (may Allah be pleased with them) were of the same age

It is narrated from Musa bin Talhah that it was well known about Sayyiduna Ali, Sayyiduna Talhah, Sayyiduna al-Zubayr and Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with them) that they were all born in the same year. Ibrahim says: They were indeed all born in the same year.

It is narrated from Busr bin Sa'id that he said: We used to sit in the gathering of Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him), and we would talk about the affairs of people and about jihad, and in the course of that conversation he would narrate hadiths of the Messenger of Allah (peace and blessings be upon him).

Sa'd bin Ibrahim narrates from his father or from one of his maternal aunts that Sayyiduna Sa'd (may Allah be pleased with him) was asked about something or about a hadith, and he remained silent. Then he said: "I dislike narrating a hadith to you and then you adding a hundred things to it from yourselves."

It is narrated from al-Sa'ib bin Yazid that he said: I remained in the company of Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) for a long time. Although he had a great store of knowledge, I did not hear him narrate (frequently) from the Messenger of Allah (peace and blessings be upon him) any hadith other than one.

It is narrated from Sayyiduna Sa'd (may Allah be pleased with him) that he said: On the day I accepted Islam, Allah Almighty had not yet made the prayers obligatory.

Muhammad bin Umar (al-Waqidi) says that he took part with the Messenger of Allah (peace and blessings be upon him) in the Battles of Badr and Uhud. On the day of Uhud, when the people fell back, he stood firm with the Messenger of Allah (peace and blessings be upon him). He also took part in the Battle of the Trench, al-Hudaybiyah, Khaybar and the Conquest of Makkah, and on that day one of the three banners of the Muhajirun was with him. He took part in all the battles with the Messenger of Allah (peace and blessings be upon him), and he was one of the renowned archers among the Companions of the Messenger of Allah (peace and blessings be upon him).

Aishah bint Sa'd narrates from her father Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) that he said (in verse): "Shall I not inform the Messenger of Allah (peace and blessings be upon him) that I protected my companions with my arrows? With them I kept driving the enemy away over every rugged and every level ground. No archer of the tribe of Ma'add can claim to have shot an arrow in the presence of the Messenger of Allah (peace and blessings be upon him) before me."

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that he said: We were sitting in the gathering of the Prophet (peace and blessings be upon him) when Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him) arrived, and the Prophet (peace and blessings be upon him) said: "This is my maternal uncle; so let every person show me his maternal uncle (who is like him)."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.