"Qalu adghathu ahlam" (They said, "A mixture of dreams"), meaning: a confusion of dreams.
Muhammad said: The singular of "adghath" is "dghth," which refers to a bundle of plants that a man gathers together in which there are various types. The meaning is: Your dream is a mixture that is not a clear vision, and to us, a mixed-up dream has no interpretation.
﴿قَالُوا أضغاث أَحْلَام﴾ أَيْ: أَخْلاطُ أَحْلامٍ.
قَالَ محمدٌ: الأَضْغَاثُ وَاحِدُهَا: ضغثٌ؛ وَهِيَ الْحِزْمَةُ مِنَ النَّبَاتِ يَجْمَعُهَا الرَّجُلُ فَيَكُونُ فِيهَا ضروبٌ مُخْتَلِفَةٌ؛ الْمَعْنَى: رُؤْيَاكَ أخلاطٌ لَيْسَتْ بِرُؤْيَا بَيِّنَةٍ، وَلَيْسَ للرؤيا المختلطة عندنَا تَأْوِيل.
