Supererogatory prayers are broad in scope, and there is leniency regarding them according to people’s circumstances. If a Muslim is travelling, he is granted concessions that make travel easier for him, such as shortening prayers and putting them together. In this hadith, Jabir ibn ‘Abdillah (may Allah be pleased with him) narrates that the Prophet (blessings and peace of Allah be upon him) used to offer supererogatory prayers whilst riding his mount or his she-camel, facing whatever direction his mount was facing. A report narrated by Abu Dawud explains how he prayed atop his mount, as it says: His prostration was lower than his bowing. So he would lean forward when prostrating a little more than when bowing. He did not dismount or insist on facing the qiblah except in the obligatory prayers. Facing towards the qiblah in an obligatory prayer is a condition of the prayer being valid. Whoever offers an obligatory prayer deliberately facing a direction other than the qiblah, without any excuse, his prayer is invalid, whether he is at home or travelling. If he is riding a mount, then he must dismount and turn towards the qiblah to offer an obligatory prayer, and that requirement is not waived except in the case of a legitimate excuse such as rain, sickness, fear and the like. Allah (may He be exalted) says: “And if you fear [an enemy, then pray] on foot or riding” [al-Baqarah 2:239]. This hadith highlights how it is made easier to pray when travelling. It also indicates that it is valid to offer supererogatory prayers atop one’s mount, and in whatever conveyances come under the same rulings..