Manusmriti
निरस्य तु पुमांशुक्रमुपस्पृस्यैव शुध्यति । बैजिकादभिसम्बन्धादनुरुन्ध्यादघं त्र्यहम् ॥ ६३ ॥
Those who have touched a corpse are purified after one day and night (added to) three periods of three days; those who give libations of water, after three days.
english translation
nirasya tu pumAMzukramupaspRsyaiva zudhyati । baijikAdabhisambandhAdanurundhyAdaghaM tryaham ॥ 63 ॥
hk transliteration by Sanscript