At Tawbah Ayah 92

وَلَا عَلَى ٱلَّذِينَ إِذَا مَآ أَتَوْكَ لِتَحْمِلَهُمْ قُلْتَ لَآ أَجِدُ مَآ أَحْمِلُكُمْ عَلَيْهِ تَوَلَّواْ وَّأَعْيُنُهُمْ تَفِيضُ مِنَ ٱلدَّمْعِ حَزَنًا أَلَّا يَجِدُواْ مَا يُنفِقُونَ ٩٢ Nor ?is there any blame on? those who came to you ?O Prophet? for mounts, then when you said, “I can find no mounts for you,” they left with eyes overflowing with tears out of grief that they had nothing to contribute.