Skandapurana 5.102.15

5.102.15

liṃgaṃ saṃsthāpayāmyeva yadvattātena keśavaḥ ..
tathā me dayito bhrātā lakṣmaṇo divamāśritaḥ .. 15 ..

“I shall certainly establish a liṅga, just as Keśava [was established] by my father. / Likewise, my beloved brother Lakṣmaṇa has resorted to heaven;