The duration of Suhur and the time of the Morning Prayer
Zayd bin Thabit narrates:
We had our suhur meal with the Messenger of Allah (peaces and blessings be upon him) and then we stood up for salat (prayer). He was asked, “How much time has passed (between suhur and salat)?” He gave the following answer:
"Enough time to recite fifty verses!"
(Bukhari, Sawm: 19, Mawakit as-Salat: 27, Tahajjud: 8; Muslim, Siyam: 47; Tirmidhi, Sawm: 14; Nasa’i, Sawm: 21,22)
In that hadith, it is stated how much time later after having the suhur meal and calling of adhan for the morning prayer, the morning prayer can be performed.
That practice of the Prophet and his Companions is a practice that can be performed easily by everyone.
The Noble Companions also inform us how they behave between suhur and morning prayer, what they do when time for suhur becomes short and how they get prepared for salat.
Sahl bin Sa’d (may Allah be pleased with him) narrates:
"I was eating suhur meal with my family. Then I ate quickly in order to perform the morning prayer with the Messenger of Allah (peace and blessings be upon him)."
(Bukhari, Sawm: 19, Mawaqit: 27)
The Prophet advised his ummah (community) ease in every subject, he did not put pressure on them and he attracted their attention to overcome hunger although a little time was left for the preparation for fasting.
He allowed that if someone was late, he could finish his meal within a few minutes even when adhan was called as is seen in the following example:
Abu Hurayra (may Allah be pleased with him) narrates:
The Messenger of Allah (peace and blessings be upon him) declared:
"If one of you has his plate (from which he is eating and drinking) in his hand at the time adhan is called, he should not drop it till his need is satisfied." (Abu Dawud, Sawm: 18)
The information in those narrations should be mainly related with the adhans Bilal used to call since he used to call the adhans for morning prayers before its time. For this reason, in the places where adhan is called just on the time of imsak (start of the fasting time), one should begin fasting as soon as adhan is called.