Combining Salahs without a valid Shar`y excuse

Q 9: Some people combine Salahs (Prayers) without a Shar`y (Islamic legal) valid excuse. They justify doing so by claiming that combining two Salahs such as Maghrib (Sunset) and `Isha' (Night) Prayers or Zhuhr (Noon) and `Asr (Afternoon) Prayers at the time of the former or the latter is permissible, because they are (Part No. 7; Page No. 19) farmers and shepherds. They consider this a reason for the permissibility of combining Salahs.

A: A Muslim has to offer each Salah at its respective time as prescribed by Allah and stated by His Messenger (peace be upon him). Allah (Exalted be He) stated: Verily, As-Salât (the prayer) is enjoined on the believers at fixed hours. Moreover, it is impermissible to combine two Salahs without a Shar`y valid excuse such as traveling or illness.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.