It is narrated from Hazrat Talq bin Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Eat and drink until the ascending light does not trouble you; continue eating and drinking until the red light appears horizontally. He indicated this with his blessed hand.

It is narrated from Hazrat Samurah bin Jundub that the Messenger of Allah, peace and blessings be upon him, said: Let not Bilal’s call to prayer prevent you from eating the pre-dawn meal (suhoor), nor the vertically spreading whiteness of dawn stop you from suhoor. However, after the dawn that spreads horizontally across the horizon, stop eating suhoor.

It is narrated from Hazrat Thawban that the Messenger of Allah, peace and blessings be upon him, said: There are two types of dawn. The dawn that is like the tail of a wolf does not make anything lawful or unlawful, but the dawn that spreads horizontally makes eating and drinking unlawful.

Hazrat Abu Musa says that the light which spreads vertically is not the true dawn, but the light which spreads horizontally is the true dawn.

Hazrat Ja'far bin Nahar says that I asked Hazrat Qasim whether the dawn (Fajr) appears lengthwise or widthwise? He replied that the dawn appears widthwise; the lengthwise appearance is the false dawn (Subh Kadhib).

Hazrat Abu Majliz says that the long (vertical) light is not (the sign of) morning; rather, the light that rises from the horizon is (the sign of) morning.

Hazrat Muslim says that the predecessors did not consider your (current) dawn as Fajr; rather, they considered that light as Fajr which would illuminate the paths and houses.

Hazrat Adi bin Thabit narrates that we had a disagreement regarding Fajr. We went to Ibrahim, and he said that there are two types of Fajr. One is the bright Fajr, which spreads vertically; this does not make the Fajr prayer permissible nor does it make eating unlawful. The other is the red Fajr, which spreads horizontally; this makes the prayer permissible and eating and drinking unlawful.

Hazrat Aamir and Hazrat Ata say that the dawn spreads horizontally and there is light with it.

Hazrat Ja'far bin Burqan says that I asked Hazrat Zuhri and Hazrat Maymun that I want to fast, and I see the morning light in the form of a pillar? They replied that you may eat and drink until the light appears on the horizon of the sky in a horizontal form.