Some people might continue to fast even while they are travelling, thinking that to fast while travelling in the present day is not difficult for people. So, they will continue fasting even while travelling, then they arrive in Makkah and feel tired, and so they say to themselves: Should I continue my fast and delay the ‘Umrah until after I have broken my fast, or should I break my fast in order to perform the ‘Umrah immediately upon arrival in Makkah. We would say to them in these circumstances: It is better for you to break your fast in order to perform ‘Umrah immediately upon arrival in Makkah, in order to perform this rite.Because when the Prophet (صلى الله عليه و سلم) entered Makkah and he was performing his religious rites, he would go straight to the Masjid, even making his camel kneel outside the Masjid, entering it in order to perform the rites, for he was so preoccupied with it. Therefore, for those who perform ‘Umrah, breaking your fast in order to perform ‘Umrah briskly is better than remaining in a state of fasting, then performing your ‘Umrah after you have broken your fast at night.
 Reported by Muslim in the Book of Fasting, in the Chapter: The Permissibility of Fasting or Breaking the Fast During the Month of Ramadan for the Traveller Without Disobedience (1114)
 Reported by Al-Bukhari in the Book of Fasting, in the Chapter: The Statement of the Prophet to the One Who Was Shaded and Upon Whom the Heat Was Oppressive: It is not righteousness to fast whilst on a journey. (1946); and by Muslim in the Book of Fasting, in the Chapter: The Permissibility of Fasting and Breaking the Fast During the Month of Ramadan for the Traveller Without Disobedience (1115).
Islamic Verdicts on the Pillars of Islam (Volume Two)
By the Honorable Shaikh Muhammad bin Salih Al- ‘Uthaimeen