Shandilya Upanishad
…to do list, observances) and eight Asanas (postures), along with three Pranayamas, five types of Pratyaharas, five kinds of Dharana, two types of Dhyana and one Samadhi. Gavin Flood dates the text to around 100 BCE to 300 CE. Roy Eugene Davis suggests Shandilya Upanishad probably pre-dates Patanjali's…