KaṭhUp, 2, 10.1 jānāmy ahaṃ śevadhir ity anityaṃ na hy adhruvaiḥ prāpyate hi dhruvaṃ tat /

KaṭhUp, 3, 15.2 anādy anantaṃ mahataḥ paraṃ dhruvaṃ nicāyya tan mṛtyumukhāt pramucyate //

KaṭhUp, 4, 2.2 atha dhīrā amṛtatvaṃ viditvā dhruvam adhruveṣv iha na prārthayante //