Madhyamakaśāstra · Chapter 19
19 kālaparīkṣā ekonaviṃśatitamaṃ prakaraṇam /
pratyutpanno 'nāgataśca yadyatītamapekṣya hi /
pratyutpanno 'nāgataśca kāle 'tīte bhaviṣyataḥ
pratyutpanno 'nāgataśca na stastatra punaryadi /
pratyutpanno 'nāgataśca syātāṃ kathamapekṣya tam
anapekṣya punaḥ siddhirnātītaṃ vidyate tayoḥ /
pratyutpanno 'nāgataśca tasmātkālo na vidyate
etenaivāvaśiṣṭau dvau krameṇa parivartakau /
uttamādhamamadhyādīnekatvādīṃśca lakṣayet
nāsthito gṛhyate kālaḥ sthitaḥ kālo na vidyate /
yo gṛhyetāgṛhītaśca kālaḥ prajñapyate katham
bhāvaṃ pratītya kālaścetkālo bhāvādṛte kutaḥ /
na ca kaścana bhāvo 'sti kutaḥ kālo bhaviṣyati
Original text: Madhyamakaśāstra · Edition: P. L. Vaidya: Madhyamakaśāstra of Nāgārjuna. Darbhanga: Mithila Institute, 1960. · Data entry members of the Digital Sanskrit Buddhist Canon Input Project · GRETIL (Göttingen) · CC BY-NC-SA 4.0