Surah At-Tawbah, ayah 92

وَلَا عَلَى ٱلَّذِينَ إِذَا مَآ أَتَوۡكَ لِتَحۡمِلَهُمۡ قُلۡتَ لَآ أَجِدُ مَآ أَحۡمِلُكُمۡ عَلَيۡهِ تَوَلَّواْ وَّأَعۡيُنُهُمۡ تَفِيضُ مِنَ ٱلدَّمۡعِ حَزَنًا أَلَّا يَجِدُواْ مَا يُنفِقُونَ ٩٢

Walā 'alal-ladhīna idhā mā atawka litahmilahum qulta lā ajidu mā ahmilukum 'alayhi tawallaw wwa a'yunuhum tafīdu minad-dam'i hazanan allā yajidū mā yunfiqūn

Nor [is there blame] upon those who, when they came to you for you to take them along, you said, "I can find nothing upon which to carry you."⁴⁹⁷ They turned back while their eyes overflowed with tears out of grief that they could not find something to spend [for the cause of Allāh].