Al-Baraa ibn Malik, brother of Anas ibn Malik
Anas ibn Malik reported that the Prophet ﷺ said: “How many are there with disheveled hair, covered with dust and given no significance; but if he were to swear an oath by Allah; He (Allah) would surely fulfill it.” Among them is Al-Baraa ibn Malik. [Jami` at-Tirmidhi, 4227]
Sʽad ibn Abi Waqqās
The Prophet ﷺ said: “O Allah, answer Sa’d when he supplicates to You”. [Jami` at-Tirmidhi, 3684]
Sʽad ibn Abi Waqqās was from the first and foremost to embrace Islam. He was the same age as Talha, az-Zubayr and Ali.
Habeeb ibn Maslama
Habeeb was twelve years old when the Messenger of Allah ﷺ passed away. Habeeb was nicknamed ‘Habeeb of Rome’ due to the great number of battles he fought there. He is mentioned among those whose supplication was answered.
Saʽeed ibn Zayd ibn ʽAmr
His mother, Fatimah bint Bʽaja was from the first to embrace Islam. His father, Zayd died upon the religion of Ibrahim two years before revelation descended upon the Messenger of Allah ﷺ. The Messenger of Allah ﷺ was asked about the condition of Zayd. He said: “He will be raised on the Day of Judgment as an Ummah unto himself.” [Ahmad, 1561; declared authentic by Shaykh Muqbil]
Excerpt from The Noble Men Who Met the Messenger; translated by Rasheed ibn Estes Barbee.