يَٰصَىٰحِبَىِ ٱلسِّجْنِ أَمَّآ أَحَدُكُمَا فَيَسْقِى رَبَّهُۥ خَمْرًا ۖ وَأَمَّا ٱلْءَاخَرُ فَيُصْلَبُ فَتَأْكُلُ ٱلطَّيْرُ مِن رَّأْسِهِۦ ۚ قُضِىَ ٱلْأَمْرُ ٱلَّذِى فِيهِ تَسْتَفْتِيَانِ
Commentary:
It may be asked why did Joseph, of whom the interpretation of the dreams was sought, say to the two prisoners that the affair about which they had inquired had already been decreed or settled. This was because the interpretation of dreams has much to do with their fulfilment. So long as a dream is not told to others, it may remain in abeyance. But when it is announced and communicated to others and its interpretation is sought, it is very generally fulfilled. This is why the Holy Prophet is reported to have said that an evil dream should not be communicated to others (Bukhari, ch. on Ar-Ru’ya min Allah).