The Messenger of Allah (peace and blessings of Allah be upon him) said: "Call upon Me, and you will be answered; ask of Me, and you will be given."(1)

49 - Chapter: The Command to Send Blessings upon the Prophet (peace and blessings of Allah be upon him)

1285 - Muhammad ibn Salamah and al-Harith ibn Miskin informed us — the latter through reading to him while I listened, and the wording is his — from Ibn al-Qasim, who said: Malik narrated to me, from Nu'aym ibn 'Abdullah al-Mujmir, that Muhammad ibn 'Abdullah ibn Zayd al-Ansari — and 'Abdullah ibn Zayd was the one who was shown the call to prayer — informed him,

from Abu Mas'ud al-Ansari, that he said: The Messenger of Allah (peace and blessings of Allah be upon him) came to us in the gathering of Sa'd ibn 'Ubadah, and Bashir ibn Sa'd said to him: "Allah, Glorified and Exalted, has commanded us to send blessings upon you, O Messenger of Allah. So how do we send blessings upon you?" The Messenger of Allah (peace and blessings of Allah be upon him) remained silent until we wished that he had not asked him. Then he said: "Say: 'O Allah, send blessings upon Muhammad and upon the family of Muhammad, as You sent blessings upon the family of Ibrahim. And bless Muhammad and the family of Muhammad, as You blessed the family of Ibrahim. Indeed, in the worlds, You are Praiseworthy, Glorious.' And the salutation (al-salam) is as you have already learned."(3)

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(1) Its chain of transmission is authentic. Ibn Wahb: he is 'Abdullah, and Abu Hani': he is Humayd ibn Hani', and Abu 'Ali al-Janbi: he is 'Amr ibn Malik. It is in "Al-Sunan al-Kubra" under number (1208).
It was also narrated by Ahmad (23937), Abu Dawud (1481), al-Tirmidhi (3477), and Ibn Hibban (1960) via the route of 'Abdullah ibn Yazid al-Muqri', from Haywah ibn Shurayh, with this chain.
It was also narrated with similar wording by al-Tirmidhi (3476) via the route of Rashdin ibn Sa'd, from Abu Hani', with it. He said: A good and authentic hadith.

(2) The word "huwa" (he) is from (R) and the margin of (K).

(3) Its chain of transmission is authentic. Ibn al-Qasim: he is 'Abd al-Rahman, and the noble Companion Abu Mas'ud al-Ansari: he is 'Uqbah ibn 'Amr. It is in "Al-Sunan al-Kubra" under numbers (1209) and (9793).
It is with Malik in "Al-Muwatta'" 1/165-166, and it was narrated from his route by Ahmad (17067) and (22352), Muslim (405), Abu Dawud (980), al-Tirmidhi (3220), and Ibn Hibban (1958) and (1965). Ahmad's first narration is abridged. =