Lord Shiva says that, whether it's Puja, Japa or any other forms of worship, success is attained only if they are done while seated in a regular Yogic posture like Padmasana etc.
Here is the verse:
Padmaswastika virAdisvAsaneshupavishya cha | JapArchanAdikam
kuryAd anyathA nishphalam bhavet ||
One must perform Japa, archanA and other such spiritual ...
Your are probably looking for Śatapatha Brāhmaṇa 126.96.36.199 (... paśur ha vā eṣa ālabhyate yat puroḍāśaḥ).
Kanda I, adhyaya 2, brahmana 3
THE PREPARATION OF THE ALTAR
5. Thereupon the gods ordained this to be the dakṣiṇā at the new- and full-moon sacrifices, to wit, the Anvāhārya mess of rice , 'lest the oblation should be without a dakṣiṇā.' That (rinsing ...
Good points have already been mentioned by above answer.
The yajnas were not "banished", but they just gradually lost the gravitas they had in earlier times under the influence of Vedanta and Bhakti schools, which promoted other practices in substitution of performance of elaborate yajnas.
Besides, the bigger yajnas mentioned in the question are ...
I would like to preface my answer by addressing some misconceptions here. These misconceptions arise from inaccurate or inauthentic understanding of the role of yajna.
The concept and practice of yajna has been a central part of the rishi culture since the beginning. The mantras of the Rig Veda samhita are filled with actions of offering raw and cooked food. ...
The translation quoted by me here is based on Sriram Sharma's Hindi translation of AV. I translated it myself to English.
१७५४. मुग्धा देवा उत शुनायजन्तोत गोरङ्गैः पुरुधायजन्त |
य इमं यज्ञं मनसा चिकेत प्रणो वोचस्तमिहेह ब्रवः ||५||
विवेकरहित यजमान, श्वान और गौ आदि पशुओं के अवयवों के द्वारा यजन करता है, तो यह अकर्म मूर्खता...