Manusmriti

siva.sh/manusmriti/2/101

पूर्वां सन्ध्यां जपंस्तिष्ठेत् सावित्रीमाऽर्कदर्शनात् । पश्चिमां तु समासीनः सम्यग् ऋक्षविभावनात् ॥ १०१ ॥

sanskrit

Let him stand during the morning twilight, muttering the Savitri until the sun appears, but (let him recite it), seated, in the evening until the constellations can be seen distinctly.

english translation

pUrvAM sandhyAM japaMstiSThet sAvitrImA'rkadarzanAt | pazcimAM tu samAsInaH samyag RkSavibhAvanAt || 101 ||

hk transliteration by Sanscript