Shiva Purana
कौसल्या तत्प्रिया मूर्त्ति पार्थिवीं शांकरीं मुदा ॥ ऋष्यशृंगसमादिष्टा समानर्च सुताप्तये ॥ ३३॥
Urged by Ṛṣyaśṛṅga, Kausalyā, the beloved queen of Daśaratha joyously performed the worship of the earthen idol of Śiva for the acquisition of a son.
english translation
kausalyA tatpriyA mUrtti pArthivIM zAMkarIM mudA ॥ RSyazRMgasamAdiSTA samAnarca sutAptaye ॥ 33॥
hk transliteration by Sanscript