In the Name of Allaah, the Most Gracious, the Ever Merciful…
The Permanent Committee of Scholars in Saudi Arabia has issued a verdict stating that saying “Allaah and His Messenger know best” was for the lifetime of the Messenger. After his death (sallallaahu alayhe wa sallam), “Allaah knows best” is to be used. This was signed by Shaykh Ibn Baaz, Shaykh Ghudayyaan, and Shaykh Abdur-Razzaaq ‘Afeefee (may Allaah have Mercy on them).
What seems to be correct based on the overall practice of the Companions and the early scholars is to refrain from saying “Allaah and His Messenger knows best” after his death, and rather say, “Allaah knows best.”
“…Because the Messenger (sallallaahu alayhe wa sallam) is not aware of what is happening after his death.”
Source: Verdicts of the Permanent Committee (2/163) [English translation]
In addition, Shaykh Saalih al-Fowzaan, Shaykh Bakr Aboo Zayd, and others mentioned that saying “Allaah and His Messenger know best” was for his lifetime, and that after his death (sallallaahu alayhe wa sallam), “Allaah knows best” is to be used.
Refer to: I’aanat al-Mustafeed (1/44), Mu’jam al-Manaahee al-Lafthiyyah (p.128).
However, some scholars allowed saying “Allaah and His Messenger know best” after his death (sallallaahu alayhe wa sallam), like Shaykh Ibn ‘Uthaymeen (may Allaah have Mercy on him) and some of the explainers of Kitaab at-Towheed, relying on a passage from the Nooniyyah of Ibn al-Qayyim: Continue reading