Valmiki Ramayana 2.52.35

यथा च तव कैकेयी सुमित्रा च अविशेषतः ।तथैव देवी कौसल्या मम माता विशेषतः॥

yathā ca tava kaikeyī sumitrā ca aviśeṣataḥ |tathaiva devī kausalyā mama mātā viśeṣataḥ ||

Our plain-language meaning of this verse is waiting for scholar review.