When something in the Quran is unclear

Sayyiduna Abd al-Rahman bin Abza (may Allah be pleased with him) said: Sayyiduna Ubayy (may Allah be pleased with him) said: "Whatever of the Book of Allah is clear, act upon it; and whatever is unclear to you, believe in it and entrust it to the one who has knowledge of it."

Zubayd said: Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "The Qur'an too has markers, just as a road has markers. So whatever you understand, hold fast to it, and whatever is not clear to you, leave it."

Al-Rabi' bin Khuthaym said: "Whatever of the Qur'an becomes doubtful to you, refer it back to Allah and His Messenger."

Abdullah bin Salamah said: Sayyiduna Mu'adh (may Allah be pleased with him) said: "As for the Qur'an, it too has clear markers, just as a road has markers, which are hidden from no one. So whatever of it you understand, do not ask anyone further about it, and whatever causes you doubt, entrust it to one who has knowledge."