Sīlabbata-parāmāsa: and Sīlabbata-upādāna: 'attachment or clinging to mere rules and ritual', is the 3rd of the 10 mental chains samyojana, and one of the 4 kinds of clinging upādāna. It disappears on attaining to Stream-entry sotāpatti. For definition, see: upādāna Ten hindrances
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.