The Prophet (peace and blessings be upon him) said:
"Indeed, the purest thing you eat is from your own earnings, and indeed your children are also part of your earnings."
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 1566
Hadith Gradingالألبانی:صحيح
Hadith Takhrij[تخ ت ن هـ] عن عائشة. الإرواء ٨٨٦ و١٦٢٦.