Basically, Muslims try to have a pre-dawn meal, known as sahur, before they begin fasting.
The Prophet(peace and blessings of Allaah be upon him) said: “Eat suhoor, for in suhoor there is a blessing.”
There is a great deal of blessing in suhoor which includes benefits both in this world and in the Hereafter. These blessings include the following:
1 – It gives strength for worship and helps one to obey Allaah during the day by praying, reading Qur’an and remembering Allaah (dhikr). One who is hungry may become lazy in worship just as he may become lazy in his daily work, this is something that is well known.
2 – Suhoor wards off the bad attitude that may be provoked by hunger, so the one who eats suhoor will be in a good mood and will interact well with others.
3 – The one who eats suhoor will be encouraged to fast more, because fasting is less difficult for the one who eats suhoor, so he will be encouraged to fast and it will not be so difficult for him.
4 – Eating suhoor is following the Sunnah, so if the person who eats suhoor has the intention of obeying the command of the Prophet (peace and blessings of Allaah be upon him) and following his example, then his suhoor is an act of worship, so he will be rewarded for it accordingly. If he intends thereby to gain physical strength for fasting and praying qiyaam, he will be rewarded according to that.
5 – The person who eats suhoor gets up at the end of the night to remember Allaah, make du’aa’ and pray, for that is when prayers are answered and it is the time when Allaah and angels send blessings upon those who eat suhoor, because of the hadeeth of Abu Sa’eed (may Allaah be pleased with him) which will be quoted below.
6 – Another blessing of suhoor is praying Fajr in the congregation, at the proper time. Hence you see that there are more worshippers praying Fajr in Ramadaan than in other months because they have gotten up for suhoor.
Suhoor may be done by means of the least amount of food or drink that a person consumes, it does not have to be any specific kind of food.
*The best time for suhoor*
It was narrated that Zayd ibn Thaabit (may Allaah be pleased with him) said: “We ate suhoor with the Prophet (peace and blessings of Allaah be upon him) then he went to pray.” I [the narrator] asked, “How long was there between the adhan and suhoor?” He said, “As long as it takes to recite fifty verses.”
This hadeeth indicates that it is preferable to delay suhoor until just before Fajr.