Justin Bieber has clapped back at his mother Pattie's prayers for his welfare.

The Sorry singer took two weeks to respond to his mother Pattie Mallette's social-media post, which had been a lengthy prayer for Justin to find "healing".

"I declare freedom, strength, clarity, and healing over you Justin," Pattie, 50, wrote on 22 September, captioning a gallery of black and white photographs of her son.

"Every chain of fear, confusion, heaviness, and pain- be broken in Jesus' name. Holy Spirit, surround him with TRUTH, LIGHT, and PROTECTION. HEAL EVERY WOUND in his heart, mind and body, seen and unseen, restore what's been stolen, and cover him in WHOLENESS."

The extended caption continued with more similar sentiments about Justin, who had been the subject of speculation over his well-being after he posted a series of cryptic messages to his social media channels.

"Fill him to OVERFLOWING with Your LOVE and COMFORT," Pattie continued. "Continue to raise him up as a voice for Your Kingdom, unshaken and on fire for You Lord. Silence every voice that doesn't come from You."

This week, Justin, 31, responded with a comment.

"Only thing I need healing from is my rolled pinky toe from playing ping pong," he wrote.

Justin released an album, Swag II, on 5 September. He and wife Hailey, 28, celebrated their seventh wedding anniversary on 13 September, a few weeks after marking their son Jack Blues' first birthday in August.