Abu Al-‘Ubaydeen (may Allah have mercy on him) says: I asked Sayyiduna Ibn Mas‘ud (may Allah be pleased with him) about those who are extravagant. He replied: Those who spend without right are extravagant.
Hadith Referenceالادب المفرد / كتاب السرف فى البناء / 444
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه ابن أبى شيبة : 26599 و الطبراني فى الكبير : 207/9 و البيهقي فى الشعب : 6126»