Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: A man wanted to go on a journey, so he said, "O Messenger of Allah (peace and blessings be upon him)! Advise me." The Prophet (peace and blessings be upon him) said to him: "I advise you to adopt the fear of Allah, and to say 'Allahu Akbar' (Allah is the Greatest) when ascending every height." When that man departed, the Prophet (peace and blessings be upon him) prayed: "O Allah! Fold the earth for him and make his journey easy for him."