Dhammapada 2.1.23

2.1.23

‘‘Te jhāyino sātatikā, niccaṃ daḷhaparakkamā;
Phusanti dhīrā nibbānaṃ, yogakkhemaṃ anuttara’’nti.

23. They that devote themselves to meditation, they that are persevering, they that put forth resolute effort,
They, the wise, attain Nibbāna, the highest bliss.