Imam Jaffer-E-Sadiq (as) nay farmaya;

jab ttm apnay ghar sey kisi kam kay liye niklo to bhookay mat jao. Or jo kam ttm chahty ho kay zarur ho jaey to jany sey pehlay roti ka aik niwala namak kay saath kah kar jao. Inshallah kamyabi pao gay.