According to Abu Sa’id al-Khudri’s (may Allah be pleased with him) relation, the Noble Prophet (peace and blessings be upon him) stated as follows:

There is abundance in suhur meal. Do not neglect getting up for suhur even if you  drink a sup of water since Allah has mercy on the ones getting up for suhur, and angles also pray for their forgiveness. (Musnad, 3:44)

Getting up for suhur is a means of two kinds of abundance. The first is that the person having suhur meal has fewer difficulties in fasting in the daytime and he becomes more resistant against fasting. In this way, Almighty Allah grants abundance and plenitude to his sustenance, to the meal he has eaten.

The other one is that a person standing awake during the dawn finds an opportunity for worship, prayer and dhikr (remembrance of Allah) because if he cannot get up for suhur, he will spend those blessed times by sleeping and as a result his spiritual share will be less.

The encouragement in the hadith is important in terms of providing those two points.

Besides, the Noble Prophet (peace and blessings be upon him) used to be quick in having iftar meal (breaking of fast) but he used to make meal of suhur late. He used to wait till the time close to imsak (start of the fasting time) and he used to eat and drink then. Because, the later the meal is eaten, the later one gets hungry, and he becomes more prepared for fasting.

According to the relation of Anas (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) especially advises us to have suhur meal and he states:

Have suhur meal, because there is abundance in suhur meal. (Bukhari, Sawm: 20, Muslim  Siyam: 45; Tirmidhi. Sawm: 17; Nasai: Sawm: 18.)

The worship of fast was present in the religious laws of Prophet Moses and Prophet Jesus. Because, fasting is a common worship of the heavenly religions. In surah of The Cow (Al-Baqarah), it is stated as follows:

O you who believe! Fasting is prescribed to you as it was prescribed to those before you, that you may (learn) self restraint. (Qur’an, The Cow (Al-Baqarah); 183 (2: 183))

As it is expressed clearly in the verse, Jews and Christians also used to fast in the beginning. However, as they modified other worships such as salat (prescribed prayers) and zakat (alms), they also modified the time of fasting and its way of performing. There was only one difference between the fasting they used to perform in the beginning and our fasting. That was suhur.

In a hadith Amr b. As (may Allah be pleased with him) related, the Messenger of Allah (peace and blessings be upon him) describes that difference as follows:

The difference distinguishing our fast from the fast of the people of the Book is suhur meal. (Muslim, Siyam: 46; Abu Dawud, Sawm: 15; Tirmidhi, Sawm: 17; Nasai, Sawm: 27)