It is reported from Maymûn b. Mahrân – Allah be please with him – that he said:
A person cannot be a taqîy (pious man of taqwâ) until he takes account of himself like he would with his business partner; and until he knows where he gets his clothing and food and drink.
Wakî’ b. Al-Jarrâh, Al-Zuhd Vol.1 p270.
Maymûn b. Mahrân was a great scholar amongst the Successors. He narrated hadîth from Abû Hurayrah, ‘Â`ishah and Ibn ‘Umar – amongst others. He died in 116 or 117H, Allah have mercy on him.