Hadith 5182
وَعَن خباب عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَا أَنْفَقَ مُؤْمِنٌ مِنْ نَفَقَةٍ إِلَّا أُجِرَ فِيهَا إِلَّا نَفَقَتَهُ فِي هَذَا التُّرَابِ» . رَوَاهُ التِّرْمِذِيّ وَابْن مَاجَه
Khabbab (may Allah be pleased with him) narrates from the Messenger of Allah (peace and blessings of Allah be upon him), he (peace and blessings of Allah be upon him) said: "Whatever a believer spends, he is rewarded for it, except for what he spends on this soil (beyond necessity), for which he is not rewarded." Sahih, narrated by al-Tirmidhi.