Brahma Too is prayed by Rishis and Munis.
In Shiva Puraana, Vaayaveeya Sanhita, PoorvaBhaaga, Chapter 2 -
तं दृष्ट्वा मुनयः सर्वे प्रसन्नवदनेक्षणाः ।
शिरस्यञ्जलिमाधाय तुष्टुवुः सुरपुङ्गवम् ॥ १७ ॥
Seeing Brahmaa all the Munis with extremely delighted face and eyes, touched their folded hands to their heads and venerated the Best of Devas thus-
मुनय ऊचुः I
नमस्त्रिमूर्तये तुभ्यं सर्गस्थित्यन्तहेतवे ।
पुरुषाय पुराणाय ब्रह्मणे परमात्मने ॥ १८ ॥
नमः प्रधानदेहाय प्रधानक्षोभकारिणे ।
त्रयोविंशतिभेदेन विकृतायाविकारिणे ॥ १९ ॥
नमो ब्रह्माण्डदेहाय ब्रह्माण्डोदरवर्तिने ।
तत्र संसिद्धकार्याय संसिद्धकरणाय च ॥ २० ॥
नमोऽस्तु सर्वलोकाय सर्वलोकविधायिने ।
सर्वात्मदेहसंयोगवियोगविधिहेतवे ॥ २१ ॥
त्वयैव निखिलं सृष्टं संहृतं पालितं जगत् ।
तथापि मायया नाथ न विद्मस्त्वां पितामह ॥ २२ ॥
The Munis said -
Obeisances to Thee O Brahma! Thou art the Trimurti and Thou performest Creation, Preservation and Dissolution.
Thou art the Ancient Purusha, obeisances to Thee who art the Supreme Soul.
Thou assumest the Supreme Body, and Thou agitatest the Pradhaana Tattva and Thou transformest into the twenty three Tattvas, but again Thou art free from their influence.
Obeisances to Thee who hast the whole Universe as His body, and Thou art established within the Universe. Thou accomplishedst Thy task and Thou bestowest accomplishment in tasks.
Thou art the Whole Existence and Thou createst the Whole Existence.
Thou art the one who ordaineth the entering and leaving of Atmaa in a body.
O Brahmaa! It is only Thou by whom this whole existence is created, sustained and destroyed,
Even then, by Thy Maayaa O Lord! we do not know Thee O Grandsire!