There is Hadith of our beloved Prophet Mohammad (Peace be upon him) in this regard.
Saaxabadii Nebi Muxamed SCW Waxay Inoo Yihiin Dad Aynu Ku Dayano Casharo Badan Oo Laga Faaidayo Sheekh Mustafe Xaaji Ismaaciil Haaruun Ayaa Inoo Soo Jeedinaya taqwatube