dānasya tapaso vāpi
yac ceṣṭā-pūrtayoḥ phalam
pravāsa-sthasya yo dharmo
yaś ca puṁsa utāpadi
dānasya - of charity; tapasaḥ - of penance; vāpi - lake; yat - that which; ca - and; iṣṭā - endeavor; pūrtayoḥ - of reservoirs of water; phalam - fruitive result; pravāsa-sthasya - one who is away from home; yaḥ - that which; dharmaḥ - duty; yaḥ ca - and which; puṁsaḥ - of man; uta - described; āpadi - in danger.
The digging of reservoirs of water for public use is a great work of charity, and retiring from family life after fifty years of age is a great act of penance performed by the sober human being.