Ramayana
तक्षं तक्षशिलायां तु पुष्कलं पुष्कलावते । गन्धर्वदेशे रुचिरे गान्धारविषये च सः ॥ 7-101-11 ॥
He settled Taksha at Takshashila and Pushkala at Pushkalavata, in the lovely country of the Gandharvas, in the region of Gandhara.
english translation