أَمَّن يَهْدِيكُمْ فِي ظُلُمَاتِ الْبَرِّ وَالْبَحْرِ وَمَن يُرْسِلُ الرِّيَاحَ بُشْرًا بَيْنَ يَدَيْ رَحْمَتِهِ ۗ أَإِلَٰهٌ مَّعَ اللَّهِ ۚ تَعَالَى اللَّهُ عَمَّا يُشْرِكُونَ (63)
(27:63) And Who is it Who shows you the way in the darkness of the land and the sea, *78 and Who sends the winds as harbingers of His mercy? *79 Is there besides Allah another god (who does this)? Far exalted is Allah above what they associate with Him .
*78) That is, "He has made such arrangements by means of the stars that you can find your way even in the darkness of the night." This is also because of the wise planning of Allah that He has created such means by which man can determine his direction and the way to his destination in his journeys by sea and land. In the day time he is guided by different land-marks and the direction of sunrise and sun-set, and in the dark nights by the stars. In Surah An-Nahl this has been counted among the bounties of AIlah: "He has placed land-marks to direct people, and by the stars, too, they are guided aright." (v. 16)
*79) "Allah's mercy" the rain whose coming is promptly foretold by the winds.