May One Fast To Welcome Ramadan?

It is known that the Prophet Muhammad (saw) would observe more nafl fasting in the months of Rajab and Shaban than in the other months (Bukhari, Sawm, 52; Muslim, Siyam, 173-179). However, considering this practice of the Prophet (saw) as welcoming Ramadan is not correct. There is no religious basis for fasting to welcome Ramadan. It is makruh to fast one or two days before Ramadan as a precaution in case Ramadan has started. As a religious term, this day is called “yawm al-shakk” (the day of doubt). Yet, one may fast on the day of doubt without the intention of welcoming Ramadan. The Prophet Muhammad (saw) said: “None of you should fast a day or two before the month of Ramadan unless he has the habit of fasting (Nawafil) (and if his fasting coincides with that day) then he can fast that day.” (Bukhari, Sawm, 14; Muslim, Siyam, 21)

What is imsak? When does it start? May one continue to eat and drink for a short while when the adhan for Fajr prayer starts to be recited?

Imsak, which literally means “to refrain, restrain, resign and abstain from”, as a religious term, means to refrain and abstain from eating, drinking, sexual intercourse, and other things that invalidate fasting from dawn (fajr al-sadiq) until sunset (the time of iftar). Iftar is the opposite of imsak. Among the people, “imsak” is used to mean the time when fasting begins. In this regard, imsak is the time to begin fasting. The time to begin and finish fasting is described in the Qur’an as: “(You may) eat and drink until you see the light of dawn breaking the darkness of night, then complete the fast until nightfall.” (Baqarah, 2:187) The imsak time shown on calendars describes the time to begin fasting. Imsak is also the moment when the night ends, the time for ‘isha prayer ends, and that of fajr prayer begins. The adhan starts to be recited with the beginning of imsak time. Therefore, one needs to stop eating and drinking at the beginning of adhan. Yet, one may swallow the piece in the mouth when the adhan starts to be recited.

Is it a must to observe the crescent to start fasting in Ramadan?